When （we are ） young， we are full of hope. 年轻时，我们大家总是充满希望。
When in Rome， do as Romans do. 入乡随俗。
When will they come back？
英语句子 when开头
When （we are ） young， we are full of hope. 年轻时，我们大家总是充满希望。
When in Rome， do as Romans do. 入乡随俗。
When will they come back？